Finding the Fourth Proportional to 352,977.12, 487,107.84 and 191,831.68
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Solution
The fourth proportional to 352,977.12, 487,107.84 and 191,831.68 is: 264,727.40
Step by Step Solution
- Step 1: Write the proportion equation
352,977.12 : 487,107.84 = 191,831.68 : x - Step 2: Convert to fraction form
352,977.12/487,107.84 = 191,831.68/x - Step 3: Cross multiply
352,977.12x = 487,107.84 × 191,831.68 - Step 4: Simplify right side
352,977.12x = 93,442,715,288.37 - Step 5: Solve for x
x = 93,442,715,288.37/352,977.12 - Step 6: Final answer
x = 264,727.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.